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Old 03-21-2012, 07:08 PM   #3 (permalink)
t vago
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For the Neon 2.0 SOHC engine, the rocker arms are mounted on pivot shafts that are above the cam. Hydraulic lash adjusters are built into each rocker arm that link the arm to the valvestem. There are separate pivot shafts for intake and exhaust. The pivot shafts are also part of the oil supply, as they supply pressurized oil to the lash adjusters in the rocker arms. The intake rocker arms each control two valves, while the exhaust rocker arms each only control one valve. This implies that, for each cylinder, there are two exhaust rocker arms and only one intake rocker arm.

Now, you could remove the rocker arms for a given cylinder, but then you'd have to put in some sort of sleeve that would prevent your oil supply from spewing out the holes in the pivot shafts and starving the remaining valvetrain components.

As for engine longevity? Eh. Your oil pump might not like the resultant vibrations from having one cylinder become dead, meaning that the gerotors might crack apart.
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